Log-bunk.



E. G. CHANDLER.

Patented July 8, 1913.

lnventor,

Wit/1 :44 a;

Att

tripping or releasing the same whereby tothereof; Fig. 2 is a similai'top plan view new and useful Im rovements ferred to improved mechanismfor adjust- ELBERT e. CHANDLER, or PORTLAND, oREGoNi LOG-BUNK.

Specification of Letters Patent.

PatentedJuly 8, 1913.

Application filed March 7, 1913. Serial No. 752,687.

To all whom it may concern: 1

Be it known that I, ELBERTG. CHANDLER, a citizen of the UnitedStates,residing in the city of Portland, county of Multnomah, and State0f.Oregon, have invented cert-ai in L0 Bunks, of which the to lowing isa specifica-,- tion.

M'y invention relates to log bunks, and more particularly to a bunk suchas is mounted upon a fiat car, truck, or other vehicle, to receive andhold logs or other objects whic-hare capable. of rolling of beingotherwise accidentally misplaced during the transportation thereof.Among the salient objects of my inven-- tion are,'to provide an improvedbunk of the character referred to having holding chocks adapted to movedown into the body of the blink and below the uppermost supportingsurface thereof, when released, whereby, to permit the object held to be'unloaded; to provide in a bunk of the char acter 'referred .to,improved mechanism whereby the-holding chocks can be released from theopposite side thereof, whereby to avoid the danger incident to releasingor tripping said chocks at the side of'the car from which the load is tobe discharged; to provide in a, bunk of the character reing the holdingchocks to different holding positions, whereby they can be readily andquickly adjusted without the necessity of releasing hooks, bolts, orother fastemngs; to provide in a bunk of the character .referred toimprovedmechanism for holding the chocks in operative positions and forpermit them to move down intothe body of the bunk and thereby releasethe log or other'object; and, in general, to providean improved,simplified and practical bunk of manufactured and 'put upon the marketat a minimum expense.

In order that others may understand my invention, I have shown in theaccompanying sheet of drawings,one practical embodiment thereof, which Iwill now describe.

Figure 1 shows aside elevation of a bunk embodying my invention, with apart broken out -to reduce the size of the figure, and with a part inlongitudinal section to show the inner construction and arrangement,

with a portion the top removed, and as if taken on line 2-2 of Fig. 1,;Fig. 3

is a cross sectional view 'taken on line 3-3 -of Fig. 1'; and Fig. 4 isa view on the same line with the tripping mechanism released and theholding chock down in the body of the bunk.

Referring to the drawings, the body of the bunk is preferably square orrectangu'lar in cross section and is of -such length as is best adaptedfor the carv or other: vehicle upon which it is to be used. The body canbe made in a variety'of ways, but as here shown, it is made of two heavysheet metal side pieces I and 2, withza channel'iron top 3, and a bottomlate 4 having upturned edges between w ich the. side pieces 1 and 2 areplaced and to which they are riveted. The top plate 2, ateach end, isprovided with a suitable slot or longitudinally extending opening, as 5,for a purpose hereinafter again referred to.

Secured to the inside of the side pieces 1 and 2, at each end of thebunk and opposite each other, are bracket members 6-6, having corrugatedor notched upper edges, one member of each pair being provided with twopairs of hinge lugs, as 7-7, and the other member of each pair beingvided with a flange-like portion, as.8,'. or a purpose hereinafterrefereed to.

A chock 9, having trunnro'ns l0, substan- I tially of the form shown inside elevation,

Fig. 1, and top plan view, Fig.2, is movably and changeab-lymounted-through the I opening or slot 5, in the ,notches of the;

bracket members M6, the upper end of said chock 9 being adapted'toproject above the top or'supporting surface of the bunk for holdingthelogs or other objects. placed thereupon, and the'lower end thereof beingprovided with a lip or flange portion, as-ll,

for a purpose now to be described, it being understood, of course, thatthere is a choc at each end of the bunk.

Hingedly mounted between the hinge lugs 77, upon one of each pair ofbrackets 66, is a swinging plate or member-'12, the lower edge of whichis slightly beveled, as indicated in Figs. 3 and 4, this swinging memberbeing adapted to be moved out wardly, as indicated in Fig. 3, to engagethe.

lip or flange 11, upon the outer end of the chock'9 which lip or flange,it will be noted,

"is also beveled, and adapted to have a flat engagement with the edge ofthe swinging member 12.

It is to be noted also that the angle of engagement between the end ofthe swinging member 12 and the lip or flange 11 of the chock is such,relative to the hori- Zontal component of the pressure between the twosurfaces, as to overcome the fric tion therebetween, so that when theswinging member 12 is released by the movement of the operating rodhereafter referred to, the strain on the chock 9 which Causes its lowerend to rise, forces the swinging member laterally to the position shownin Fig. 4 and thereby allows the check to rock on its pivot bearing. Thelip or flange portion 8 on the oppositebracket, serves as a bearingagainst which the opposite side of the chock 9 bears and by means ofwhich said check is prevented from being moved laterally.

the swinging member 12, at opposite ends of the bunk, are movedoutwardly by means of operating rods mounted longitudinally of the bunkand in the lower corners thereof, as indicated by the numerals 13l3,said rods being held in suitable bearing blocks l4 14, each of saidbearing rods being provided adjacent the swinging member 1212, withoffset portions, as at 15, adapted to move outwardly against saidswinging member 12, when said rods are turned, as indi cated in Fig. 3.Each of said rods is provided at its operating end, with a long,upturned portion, as 16, which servesas a lever or handle, and at itsopposite end with a shorter bent portion 17, bycmeans of which said rodcan be turned, when there is no load, for the purpose of adjusting thechock at that end; that is, it is possible for one man to turn the rodwith one hand and hold the chock with theother.

The chocks 99, at the opposite ends of.

the bunk,- it will be noted, are positioned toward opposite sides of thebunk. The op erating rods, are atopposite sides of the bunk, theswinging members 1212 are sup ported at opposite sides of the bunk,

leasing mechanism of the chockat the far-- ther end of the bunk fromwhich it is located; Thus, if it is desired to release a chock at oneside of the car and to discharge the log or other object from that sideof the car, the operator would go to the opposite side of the car andmove the long lever or handle 16, which releases 'the'swinging member 12at the other end of the bunk body, being the opposite side of the earfrom that on which he is standing, and the chock at that side of the carwould be released and allowed to move down into the .3) In a log bunk, abody s 'eries of notches, a holding chock pivotally bunk body and into aposition below the uppermost supporting edges of the bunk body, wherebyany log or other object is free to roll off the end of the bunk.

It is intended that when the offset portion 15 of one of the operatingrods 13 is turned downwardly so as to move the swinging member 12outwardly and to hold it there, that said offset portion 15 shall be atsuch an angle to said swinging member 12 that the latter cannot moveback and re lease the chock until the operating rod is turned. Theangular engagement betweenthe end of the swinging member 12 and the lip11 of the chock 9-is such that when said operating rod is turned, theswinging member 12 is automatically forced back, as shown in Fig. 4.

\Vhile I have shown and described but one embodiment of the invention, Iam aware that changes can be made therein without departing from thespirit thereof, and I do not, therefore, limit the invention to theparticular form here shown for illusposed supporting or hearing seatstherein, a

holdingchock pivotally mounted therein and movable bodily to differentbearing seats,

"and a-holding member for holding said chock inoperative position in anyof said locations. j provided with mounted in said notches and movablebodily to different notches to change its operative location in saidbody, and a 'holdlng member; forfholding said check in operativeposition in-said body.

4. In a log bunk, a body, a pivotally mounted holdmg chock therein andadjustableto' different pivotal locations, an operating'-. 'm echanism,operable from the end of the-body of the bunk, for releasing said check,whereby otal bearing.

,5. In a log bunk, a body provided with oppositely disposed supportingor bearing. seats, a pivotally mounted holding chock with supportingtrunnions adapted to said seats and movable upon its pivot-bearing to aposition below the supporting s11" face of said body, and a holding andtripping mechanism operable from the opposite end of the bunk body.

6. In a log hunk of the character referred T it can be moved on itspivto, in combination, a bunkbody having oppositely disposed bearingseats, apivotally mounted holding chock with trunnion like membersadapted to move upon its ivot bearing down into said body, said chocbeing movable bodily to different bearing seats, a movable part adaptedto engage and hold said chock in its up or operative position, and anoperating member for moving said movable part.

7. In a log bunk of the character referred to, in combination, a bunkbody, a pivotally mounted holding chock. adapted to move upon its pivotbearing down into said body, said chock being adjustable todifierentpivotal locations, a movable part adapted to engage and holdsaid chock in its up or operative position, and an operating member formoving said movable part.

8. In a log bunk, a bunk body provided with series of oppositelydisposed supporting notches or seats, a holding chock pivotally mountedtherein and adjustable to dif-,

ferent locations therein, a movable part for holding said chock in'itsup or operative position, and operating mechanism for'moving said part.

9. In a log bunk, a bunk body provided with series of oppositelydisposed supporting notches or seats, a holding chock pivotally mountedtherein and adjustable to different locations therein, a movable partfor engaging and holding said chock in operative position, and anoperating rod extending to the opposite end of said body for moving saidpart. v

10. A log hunk of the character referred to comprising in combination abunk body of hollow construction with longitudinally extending open' gin its upper side; bracket members havin corrugated upper edges mountedop si e each other ad'acent said opening, a c 10Ck\ member pivotallysupported through saidopening and upon said bracket members andadjustable to different positions thereon, said chock bein adapted tomove upon its pivotal mounting down into said bunk body, a movablemember adapted to be moved into holding engage ment with said chock, andan operating rod for moving said movable member into engagement withsaid chock, substantially as described. v

Signed at Portland, Oregon, this 26th day of February, 1913.

ELBERT G. CHANDLER. as] In presence of- J. C. S'rRnNo, R. B. FRENCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0."

